<?php

setlocale ( LC_ALL, 'en_US.UTF-8' );

header ( 'Content-Type: text/html; charset=utf-8' );
echo 'белая собака';
echo strToLower ( 'белая собака' );

exit ();
$orig = 'ёЁйЙØÅŻ';
echo $orig . '<br>';
$path = '../../../files/tmp/';

if (! touch ( $path . $orig )) {
	exit ( 'unable to create file' );
}

$orig = str_replace ( '"', '', json_encode ( $orig ) );
echo "original: " . $orig . '<br>';

$origParts = explode ( '\\', $orig );
array_shift ( $origParts );

//                     й                 ё              Й               Ё              Ø         Å
$patterns = array ("\u0438\u0306", "\u0435\u0308", "\u0418\u0306", "\u0415\u0308", "\u00d8A", "\u030a" );
$replace = array ("\u0439", "\u0451", "\u0419", "\u0401", "\u00d8", "\u00c5" );

foreach ( scandir ( $path ) as $f ) {
	if ($f != '.' && $f != '..' && substr ( $f, 0, 1 ) != '.') {
		
		// echo mb_detect_encoding($f);
		

		$name = str_replace ( '"', '', json_encode ( $f ) );
		echo "before replace: $name<br>";
		// $name = str_replace($patterns, $replace, $name);
		// echo "after replace: $name<br>";
		break;
	}
}

$parts = explode ( '\\', $name );
array_shift ( $parts );

$diff = array_diff ( $parts, $origParts );

if (count ( $diff )) {
	echo "Following symbols not found in original";
	echo '<pre>';
	print_r ( $diff );
	echo '</pre>';
} else {
	echo "OK";
}

?>